Pump



Feb. 5, 1929.

L. E. RUSH PUMP lvllllll/l /llllll/llla INVENTOR. E. 76w.

A TTORNEYZS.

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L 4 7 4 4 n 5 v 26k H 7 I 0 I. Z 4 l 0 I 3 l l Patented Feb. 5 1929.

PATENT OFFICE,

LEO BUSH, or INDIANAPOLIS, INDIANA,

PUMP.

Application filed May 25, 1925. Serial No. 32,681. r

This invention-relates to a-dispensing de vice and particularly one for hydrocarbon or similar liquids, particularly gasoline.

The chief obj'ectof the invention is to provide what is commonlycalled a visible pump with a control mechanismfor measuring the amount dispensed without the employmen of a siphon heretofore employed. 1

The chief feature of the invention: consists in the arran ement'of the-measuring mechanism in the orm of at least three con-' view of a visible pump, parts being removed to illustrate'other parts in detail. Fig. 2 isv a vertical sectional, view of the pum and measurlng mechanism. Fig. 3 1s a'similar view of a modified form of the invention.

In the drawings 10 indicates a suitable base, 11 a standard, tubular in form, terminating in a supporting head 12, which is provided with a transparent tubular chamber forming member 13 suitably protected by wire mesh or similar means 14. The chamber 13 is closed or covered by any suitable means such as the cover and advertising device 15. An over-flow pipe 16 determines the initial or zero level of the liquid within the tank or chamber 13. Hereinsaid chamber 13 is provided with a tubular discharge centrally p-ositioned'and indicated in Fig. 2 by the numeral 17. This tubular discharge is provided with an outlet 18 connected to the usual hose 19 having a control valve 20. Any suitable means may. .b'e'provided for supplying the liquid to be dispensed tothe container or chamber. l3,the surplus being wasted or returned to the source of supply 7 by meansof the over-flow pipe 16.

The upper end of tube 17 1s shown provided with a pluralityof outlet forming notches 21. A valve 22 is rigid with atube 23. When the valve 22 israised above the level of the openings 21 by the telescopic or axial movement of tube 23 within tube 17,

all of the liquid in the tank 13 above the level of the outlets 21 will be discharged 17, no fluid can pass into tube17 through] ports21.r v

Supported by tube 23 and extending co axial therewith and above the same is a provided with the openings 25 similar to the openings 7 21. Therefore, when valve 22 is lowered in tube 17 by lowering the tube 23, the tube 24 is likewise lowered and the ports 25, if not otherwise controlled, will permit all of the liquid thereabove to discharge through tube 24 into tube 17 by means of the several ports 26 at the connection between the tubes 24 and 23. s

' Another tube 27 has an open upper end 28 and its lower end communicates with the tube 24 through the ports 29. A valve 30is carried by tube 27 and .is slidable: therewith,

said tube 27 and valve 30 being slidable by a rod 31 which is c oaxially arranged and extube 24, which tube 24 at its upper end is tends through tubes 24, 23 and 17 and proects beyond them all, When the tube 27 Y is elevated so that valve 30 uncovers ports 25 all of the liquid thereabove will discharge through outlet 18. When suchis'not the case the valve 30 is positioned below ports 25. All of the liquid then must be discharged through tube 27 by passing through the open mouth 28 provided valve 22 is positioned as shown invFig. 2. The device is so arranged that whenvalve 22is opened the liquid contained within the tank between the top of the over-flow pipe 16 and the bottom port 21, is exactly ten gallons. The device is also arranged so that when tube 24 is in predetermined position the amount of liquid convtained within the tank between the, level defined by the open upper end of the overflow pipe 16and the lower edge of the openings 25 is exactly six gallons.

. The various possible combinations are as follows When it is desired to have six or ten gallons respectively, the valves 30 and 22 respectivelyare elevated to open ports 25 and 21 respectively. NVhen it is desired to have from one to five gallons, the two before mentioned valves are maintained in their closed relationship within their respective tubes and" the tube 27 is lowered to any one of its" several positions forsecuring 1, 2, 3

or'morie. gallons discharge through tube 27 to outlet 18. Fig. 2 shows the arrangementfor securing one gallon. When from six to ten gallons is required, the mechanism is so arranged that valve 30 is opened wh ch will permit the discharge of six gallons. Likewise,

tube 24 is. lowered, thereby lowering the dis charge level of ports 25 and such lowering may be tor one, two, three or more gallons, thereby giving a total discharge or" seven, or eight or more gallons, respectively.

The mechanism for readily determining the discharge amount is shown toward the bottom of Fig. 2, and comprises a plurality of rods carrying stops and cooperating handles. Herein rod is positioned in brackets 41 suitably secured to the tubular stand, or standard 11. Saidrod 40, carries a plurality of stops 42, which are adj ustably but rigidly mounted thereon, and at such distances that they cor respond to the volumetric level difference for the particular volumetric differences desired. It a suitable connection is effected whereby the positioning oi? the top. of tube 24 is determinedlby oneot the stops 42, the several positionsott said tube 24 may be accordingly determined. Astop48 isadjustably but rigidly mounted upon the lower end of tube Aland 1 said handle 44 is adapted to engage any one of theseveral: stops 42. It the uppermost stop. isengaged: then opening of the val ve will discharge ten. gallons. Engagement of the stop-.43;upon.second stop will discharge sir; gallons,each succeeding stop indicating the discharge of an additional gallon. There fore, itis only necessary to provide thru sup plementary or level determining stops, towit, to secure from seven tonine gallon variations, six and ten. gallon discharges being obtainable by opening the respective ports by shitting tubes 27' and 24 respectively upwardly through opening the proper valve.

The rod 31 is. slidably supported within tube 23* and has its lower free end slidably supported in a bracket 45. It carries an ad justable-stop46, having a handle portion. 47, said step 46 being rigidly secured to rod 31. heir the handle 47 is positioned upon any one of the stops 142, carried by the rod 141,

which is rigid with tube 23, valve 30 and tube 27 have relative movement with. respect to tube 24. Thus, if the stop46 engages the up permost stop 14 2 the ports 25 are opened because-the valve 30 is elevated thussecuring a six gallon discharge, depending upon the position oi said stop. Positioning 0t stop 46 by handle 47 engagingthe next lowest stop 142 will secure the discharge ct but one gallon, and positioning of said stop 46 upon successive stops 142 will securesucces'sive discharges'of additional gallons;

In Fig. 3a modified form-of the inventionis illustrated and in this form, the capacity is but half of that previously described. Inthis formof the invention the standard 111 through base 112 supports the chamber 113 within which ispositioned the tubular discharge 117. Telescopically associated therewith is the tubular construction 124, the up per end of which is open as at 128 and the other end of which supports a valve 122 for closing ports 121. A rod 131 is provided within tube 117 for reciprocating tube 124 and valve 123, p

In Figs. 2 and 8 it will be noted that any desirable number of graduated discharges can be obtained, all of which are discharged from. the same outlet 18. The invention, therefore, includes basiclythree or; more. telescopically arranged tubes each having an open upper end, the upper end of the outermost tube being' closed by a valve carried by the inner'tube. Likewise, the telescopic movement or the inner tube with respect to the outer tube may be graduated as desired for any suitable number of divisions of all of the volume included, between the open. ends ofboth tubes;

A further feature of the invention is: herein. illustrated particularly in. the mid-portion of Fig. 2, and the same comprises a seal inter posed between; the two telescopically movable members, to wit, tubes 23, and 17. Said seal 50 includes a chamber 51: which is adapted to contain a fluid 52, such as castor oil or glycerine for a packing mediumr, said material being of such a. mixture that it isnot readily cut by the. liquid dispensed through outletv 18. Similarly, there is also provided another seal: 53 of similar character between thetube 23 and rod 17. No other-seals are-required- The invention claimed is z.

1. A measuring pump comprising aliquid rccelving chamber,,an over-flow pipe tfifllllr. nating near the top therein for inltial level detcrminatioma valve discharge for dispense ing purposes, and a discharge level; determining construction comprising three telescopic tubes, a plurality of said tubes being longitudinally movable, said tubes-when in extended relation being arranged in superposed relationv and each. having an open mouth adj acent the upper end, and valve means on the lower ends of the superposed tubes for controlling the open mouth of the. next, lowest tube, said. discharge communicating with the lOWGLHlOSh tube and each tubecommunicating with the other tubes.

2. A device as defined: by claim 1,. charac terizedby theaddition of ooaxially arranged extensions on: the superposed tubes, and in terlocking controls for selective positioning of said tubes.

Inwvitnesswhereot, I. have hereunto affixed my signature...

LEQ- E.. 

